Question

using (a+b)(a-b) find 5.3 x 4.7 ​

Answer 1

Answer:

Step-by-step explanation:

a2-b2)/(a-b)^2

(5.3+4.7)(5.3-4.7)/(5.3-4.7)^2

10*0.6/.36

10/.6=

16.67